System Outline

The cruise control system is a constant vehicle speed controller which makes it possible to automatically adjust the opening of the engine throttle valve without depressing the accelerator pedal, but by operating a switch on the instrument panel instead.

1. Set Operation 

   When the ON-OFF SW is turned on, the system begins the preparations necessary for the cruise control to operate and turns on the indicator light in the combination meter.

2. Set Speed Control 

   If the - SET SW is pressed when the ON-OFF SW is on and the vehicle is being driven, the vehicle is maintained at the current speed.

3. Coast Control 

   When the - SET SW is pressed and held down while driving with the cruise control active, the engine control module adjusts the throttle valve to gradually decelerate the vehicle. Also, every time the - SET SW is pressed briefly, the vehicle will decelerate by approximately 1.6 km/h.

4. Accel Control 

   When the + RES SW is pressed and held down while driving with the cruise control active, the engine control module adjusts the throttle valve to gradually accelerate the vehicle. Also, every time the + RES SW is pressed briefly, the vehicle will accelerate by approximately 1.6 km/h.

5. Resume Control 

   If the cruise control has been cancelled, pressing the + RES SW resumes cruise control operation and the vehicle is returned to the previously set speed.

6. Manual Cancel Mechanism 

   If any of the following signals are received while driving with the cruise control active, the cruise control will be cancelled.

   * The stop light SW is turned on.

   * The CANCEL SW is turned on.

   * The ON-OFF SW is turned off.

7. Auto Cancel Function 

   If any of the following conditions is encountered, the cruise control will be automatically cancelled.

   * The stop light SW wiring is faulty or short-circuits.

   * The vehicle speed signal is faulty.

   * The electronically controlled throttle malfunctions.

8. Overdrive Control Function 

   The overdrive control may be cancelled if the vehicle travels on a steep slope while driving with the cruise control active. After the overdrive control has been cancelled and it has been detected that the slope has finished, the vehicle will return to the overdrive control mode again.